Scientists Discover Bonobos Can Engage in Make-Believe Play, Challenge Human Exceptionalism
A groundbreaking study published in the journal Science has revealed that bonobos, our closest living relatives, are capable of engaging in make-believe play much like children. Researchers at the University of St Andrews and Johns Hopkins University trained a bonobo named Kanzi to identify imaginary objects in pretend scenarios, demonstrating a level of cognitive complexity previously thought to be unique to humans.
Kanzi was first taught to point to containers filled with juice by rewarding him for doing so. The researchers then presented him with two empty transparent cups and pretended to fill them with an empty jug, asking Kanzi to indicate which cup contained juice. To their surprise, Kanzi selected the correct cup in 34 out of 50 trials, suggesting he had a deep understanding of the concept of pretend liquids.
The researchers also tested Kanzi's ability to distinguish between tangible and imaginary juice by presenting him with two cups โ one containing real liquid and the other empty. In 14 out of 18 trials, Kanzi chose the cup with the real liquid, demonstrating that he could differentiate between the two.
Kanzi's most impressive feat, however, was his ability to identify the location of an imaginary grape placed in one of two transparent containers. This task required a level of cognitive flexibility and creativity, suggesting that bonobos may possess a form of imaginative thinking similar to our own.
The researchers' findings have significant implications for our understanding of human evolution and exceptionalism. By demonstrating that non-human animals can engage in make-believe play, the study challenges the notion that humans are uniquely equipped with this cognitive ability.
"We share this capacity [for making-believe] with bonobos," said Dr. Amalia Bastos, first author of the research. "So, it would have been somewhere between 6- and 9 million years ago when our common ancestor developed this ability."
The study's lead author notes that the ability to make-believe could be a fundamental aspect of animal cognition, dating back to our shared evolutionary past.
While further research is needed to confirm these findings in apes without Kanzi's unique rearing and learning environment, the study provides a rigorous experimental test that challenges human exceptionalism. As Dr. Zanna Clay from Durham University noted, "It would be more surprising if we found this ability in more distantly related species with more divergent social and cognitive abilities."
A groundbreaking study published in the journal Science has revealed that bonobos, our closest living relatives, are capable of engaging in make-believe play much like children. Researchers at the University of St Andrews and Johns Hopkins University trained a bonobo named Kanzi to identify imaginary objects in pretend scenarios, demonstrating a level of cognitive complexity previously thought to be unique to humans.
Kanzi was first taught to point to containers filled with juice by rewarding him for doing so. The researchers then presented him with two empty transparent cups and pretended to fill them with an empty jug, asking Kanzi to indicate which cup contained juice. To their surprise, Kanzi selected the correct cup in 34 out of 50 trials, suggesting he had a deep understanding of the concept of pretend liquids.
The researchers also tested Kanzi's ability to distinguish between tangible and imaginary juice by presenting him with two cups โ one containing real liquid and the other empty. In 14 out of 18 trials, Kanzi chose the cup with the real liquid, demonstrating that he could differentiate between the two.
Kanzi's most impressive feat, however, was his ability to identify the location of an imaginary grape placed in one of two transparent containers. This task required a level of cognitive flexibility and creativity, suggesting that bonobos may possess a form of imaginative thinking similar to our own.
The researchers' findings have significant implications for our understanding of human evolution and exceptionalism. By demonstrating that non-human animals can engage in make-believe play, the study challenges the notion that humans are uniquely equipped with this cognitive ability.
"We share this capacity [for making-believe] with bonobos," said Dr. Amalia Bastos, first author of the research. "So, it would have been somewhere between 6- and 9 million years ago when our common ancestor developed this ability."
The study's lead author notes that the ability to make-believe could be a fundamental aspect of animal cognition, dating back to our shared evolutionary past.
While further research is needed to confirm these findings in apes without Kanzi's unique rearing and learning environment, the study provides a rigorous experimental test that challenges human exceptionalism. As Dr. Zanna Clay from Durham University noted, "It would be more surprising if we found this ability in more distantly related species with more divergent social and cognitive abilities."